SUSCEPTIBILITIES OF 55 STRAINS OF NEISSERIA-MENINGITIDIS ISOLATED IN SPAIN IN 1993 AND 1994

The in vitro susceptibility of 55 strains of Neisseria meningitidis is olated in 1993 and 1994 at the Valme and Macarena Hospitals, Sevilla, Spain, to penicillin, ampicillin, cefotaxime, cefpodoxime, imipenem, r ifampin, ciprofloxacin, chloramphenicol, tetracycline, erythromycin an d trimethoprim- sulfamethoxazole were determined by a microdilution me thod in Mueller-Hinton broth. Among our N. meningitidis isolates, 36.4 % were found to be moderately resistant to penicillin, 43.6% were resi stant to trimethoprim/sulfamethoxazole . All the strains were suscepti ble to tetracycline, ciprofloxacin, cefotaxime and rifampin.